/*
 *
 * (c) Copyright Ascensio System Limited 2010-2018
 *
 * This program is freeware. You can redistribute it and/or modify it under the terms of the GNU 
 * General Public License (GPL) version 3 as published by the Free Software Foundation (https://www.gnu.org/copyleft/gpl.html). 
 * In accordance with Section 7(a) of the GNU GPL its Section 15 shall be amended to the effect that 
 * Ascensio System SIA expressly excludes the warranty of non-infringement of any third-party rights.
 *
 * THIS PROGRAM IS DISTRIBUTED WITHOUT ANY WARRANTY; WITHOUT EVEN THE IMPLIED WARRANTY OF MERCHANTABILITY OR
 * FITNESS FOR A PARTICULAR PURPOSE. For more details, see GNU GPL at https://www.gnu.org/copyleft/gpl.html
 *
 * You can contact Ascensio System SIA by email at sales@onlyoffice.com
 *
 * The interactive user interfaces in modified source and object code versions of ONLYOFFICE must display 
 * Appropriate Legal Notices, as required under Section 5 of the GNU GPL version 3.
 *
 * Pursuant to Section 7 § 3(b) of the GNU GPL you must retain the original ONLYOFFICE logo which contains 
 * relevant author attributions when distributing the software. If the display of the logo in its graphic 
 * form is not reasonably feasible for technical reasons, you must include the words "Powered by ONLYOFFICE" 
 * in every copy of the program you distribute. 
 * Pursuant to Section 7 § 3(e) we decline to grant you any rights under trademark law for use of our trademarks.
 *
*/


using System;
using System.IO;
using System.Text;
using System.Web.Optimization;
using ASC.Common.Logging;
using ASC.Data.Storage;

namespace ASC.Web.Core.Client.Bundling
{
    class StorageTransform : IBundleTransform
    {
        private static readonly ILog Log= LogManager.GetLogger("ASC.Web.Bundle.StorageTransform");

        public void Process(BundleContext context, BundleResponse response)
        {
            if (!BundleTable.Bundles.UseCdn) return;

            try
            {
                var bundle = context.BundleCollection.GetBundleFor(context.BundleVirtualPath);
                if (bundle != null)
                {
                    var fileName = Path.GetFileName(bundle.Path);
                    if (string.IsNullOrEmpty(fileName)) return;
                    var path = Path.Combine("App_Data", fileName);
                    var relativePath = Path.GetTempFileName();
                    
                    File.WriteAllText(relativePath, response.Content, Encoding.UTF8);

                    StaticUploader.UploadFileAsync(path, relativePath, r =>
                    {
                        try
                        {
                            bundle.CdnPath = r;
                            File.Delete(relativePath);
                        }
                        catch (Exception e)
                        {
                            Log.Error("StorageTransform", e);
                        }
                    });
                }
            }
            catch (Exception fatal)
            {
                Log.Fatal(fatal);
                throw;
            }
        }
    }
}
